When was the first greeting card made?

How many people in the world cant smell? Is it proper to use an ampersand in salutation ie Dear Mr Mrs Smith? Who is Mrs J? Can you give an example on how to introduce a guest speaker? What are the origins of the word guest? What does the idiom cut you down to size mean? Should a letter to a vacationing sister be formal informal or general? What is the correct salutation for a Sheik? What does To get under one's feet mean? What does the idiom down going men mean? What does Du Patin mean? How do you say to my friends house in french? How do you say What if your Highness in french? What does salut a toi le parisien mean? What does skip it mean? Do you say We are regretted in a letter? How do you say it was nice to meet you in Chinese? How do you abbreviate your HOnor in a letter? When a employee is doing something wrong and you have to write them up is there a better word then write up? In my studies I saw that while pointing at something with your finger is considered appropriate in one culture it is considered rude in others. I also came to understand that people attach?